TDA4472-A中文資料Temic數(shù)據(jù)手冊(cè)PDF規(guī)格書

Description

The TDA4472 is an integrated bipolar circuit for video/sound IF (VIF/SIF) signal processing in TV/VCR and multimedia applications.

The circuit processes TV video IF signals with negative modulation (e.g. B/G standard) and the FM/NICAM sound IF signals.

Features

● 5 V supply voltage; low power consumption

● Active carrier generation by FPLL principle

(frequency-phase-locked-loop) for true synchronous

demodulation

● Very linear video demodulation, good pulse response

and excellent intermodulation figures

● VCO circuit is operating on picture carrier frequency

● Alignment-free AFC without external reference circuit

● VIF-AGC with peak sync detection

● Tuner AGC with adjustable take over point

● Alignment-free quasi parallel sound (QPS) mixer for

FM/NICAM sound IF signals

● Gain controlled intercarrier output signal

(supports digital sound processing systems)

● Separate SIF-AGC with average detection

● Two independent SIF inputs

● Package and pinning is fully compatible with the

multistandard version TDA4470, simplifies the

design of an universal IF module